Electric reactor of controlled reactive power and method to adjust the reactive power

Abstract

An electric reactor of controlled reactive power is formed by a magnetic core, and at least one primary winding to which a main current is supplied to generate a main magnetic flow on the magnetic core. The reactor also includes at least a generator of the magnetic distortion field to which a control current is supplied to generate a field of magnetic distortion on the magnetic core. The magnetic distortion field is opposed to the main magnetic flow generating a distortion of the latter, achieving a change in the magnetic core reluctance and in this way a change in the reactive power of consumption of the reactor. In addition, a method is described to adjust the reactive power in an electric reactor.

1. A electric reactor of controlled reactive power comprising:
 a magnetic core having a central column positioned in spaced parallel relation to a pair of external columns positioned on opposite sides of said central column, said magnetic core having a superior yoke connected to one end of said central column and to an end of said pair of external columns, said magnetic core having an inferior yoke connected to an opposite end of said central column and to an opposite end of said pair of external columns, said superior yoke having a first pair of orifices positioned between said central column and one of said pair of external columns, said superior yoke having a second pair of orifices positioned between said central column and another of said pair of external columns; 
 a primary winding concentrically wound around said central column; 
 a first control coil wound through said first pair of orifices; 
 a second control coil wound through said second pair of orifices; 
 a main current supplying means connected to said primary winding for supplying a main magnetic flow in said magnetic core; 
 a control current supplying means connected to said first and second control coils for generating a first magnetic control flow in said magnetic core and for generating a second magnetic control flow in said magnetic core such that said second magnetic control flow has a direction opposite to a direction of said first magnetic control flow and such that said first and second magnetic control flows form a magnetic distortion field, said magnetic distortion field combining with said main magnetic flow so as to cause a change in reluctance of said magnetic core. 
 
   
   
     2. The electric reactor of  claim 1 , said first control coil being spirally wound. 
   
   
     3. The electric reactor of  claim 1 , said second control coil being spirally wound. 
   
   
     4. The electric reactor of  claim 1 , said main current supplying means for passing an alternating current. 
   
   
     5. The electric reactor of  claim 1 , said control current supplying means for passing an alternating current.